DESC: The Classic Series semi-rectangular bags are versatile and comfortable. They offer plenty of room to move around yet they pack small and light, making them perfect for backpacking and car camping. All Classic Series bags are designed to be used with a 20" wide rectangular pad. Size Bag Weight Fill Weight Pad Size Regular 3 lbs 3 oz 650 goose 20"x72" Long 3 lbs 7 oz 650 goose 20"x78" Features: • Shell fabric: Water resistant, down proof nylon rip-stop • Interior lining: Soft and breathable, down proof nylon microfiber with stain resistant finish • Cotton storage sack and nylon stuff sack included • Built in pillow pockets holds a fleece or our Air Core Pillow • No-draft yoke seals around neck to keep cold air from sneaking in. • 70" YKK #8 zipper. Mate together any of our left and right zip bags with a 70" zipper • No-draft wedge insulates the connection between the bag and pad. • Rectangular shape offers more room in foot box and head • No-draft zipper tube insulates along the length o